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METHOD FOR PRODUCING POLARIZER, METHOD FOR PRODUCING POLARIZING PLATE, METHOD FOR PRODUCING MULTILAYER OPTICAL FILM, POLARIZER, POLARIZING PLATE, MULTILAYER OPTICAL FILM AND IMAGE DISPLAY
METHOD FOR PRODUCING POLARIZER, METHOD FOR PRODUCING POLARIZING PLATE, METHOD FOR PRODUCING MULTILAYER OPTICAL FILM, POLARIZER, POLARIZING PLATE, MULTILAYER OPTICAL FILM AND IMAGE DISPLAY
Disclosed is a method for producing a polarizer which is composed of a film having such a structure wherein fine regions which are composed of an energy ray-curable birefringent material having liquid crystallinity and aligned are dispersed in a matrix composed of a light-transmitting resin containing a dichroic absorption material. This production method comprises an energy irradiation step for fixing the alignment of the birefringent material having liquid crystallinity. A polarizer produced by such a method has high transmittance and high polarization degree, and enables to suppress variations of transmittance in the black display state.
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